Well-packer.



W. S. PIERCE.

WELL PAGKER.

APPLIOATION FILED APR.11,1913.

Patented Mar. 24, 1914 UN STATES PATENT FFICE,

WILLIAM S. PIERCE, OF FRANKLIN, PENNSYLVANIA, ASSIGNOR OF ONE-HALF T0 CHARLES A. PIERCE, VOF FRANKLIN, PENNSYLVANIA.

WELL-PACKER.

Specification of Letters Patent. Application filed April 11, 1913.

Patented Mar. 24, 1914. Serial No. 760,526,

To all fwzO/m it may concern: to liinit the separation of said sections l and Be it known that I, lViLLiAM S. PIERCE, 1| 2, as shown in `Fig. 2. a citizen of the United States, residing at i A threaded key 11 is driven in, or otherlfranklin, in the county of Venango and p wise detachably secured to, the section 2 and State oit Pennsylvania, have invented cercarries a mutilated nut 12 adapted to engage tain new and useful Improvements in lVella slot in a tube 13 secured to the section l Packers; and I do hereby declare the f oland extending slidably through said section lowing to be a full, clear, and exactJ descrip- 2; thereby providing means for detachably tion of the invention, such as will enable l locking said casing sections l and 2 together others skilled in the art to which it appery in position for ready insertion in a Well, as

shown in Fig. l,

tains to make and use the same.

My invention relates to improvements in In the operation or this improved construction, the casing sections are secured towell packers, and consists in the constructions, combinations and arrangements heregether by the nut l2 in the position shown in described and claimed. in Fig. 1, and then lowered in the Well until The object of my invention is to provide the lower end or the section 2 engages and an improved well packer adapted to be readis supported by the well tubing. Pressure is then applied to the line of well tubing eX- il;Y set in position and to etiicient'ly pack a well under all practical conditions, and tending upwardly from the coupling 3 of the upper section l to drive said section which can be readily released and pulled within the hollow section 2, and thereby set after having been set.V

ln the accompanying drawings forming a the packing by expanding the packing sleeve 4 into tight engagement with the Walls of part of this application, and in which simiar reference symbols indicate Correspondthe well for etiiciently preventing the escape ot gas'or liquid there past. During such ing parts in the several views :l*`igure l is downward forcing of the casing section l, the tube 13 :forces the key 11 from the seca vertical axial section, illustrating one enibodiment of my invention, with the parts in position for insertion in a well; Fig, 2 iS a tion 2 and said key drops to the bottom of the well. If desired, the casing section 1 can be forced downward within the section 2 side elevation, showing the parts in the position assumed when pulling the packer,

by dropping a line of small piping on said section l. After the packer has been thus the lower casing section being partly broken away; Fig. 3 is a. bottom plan view'of the construction shown in Fig'- l, and Fig'. 4 set, it can be readily released and pulled out is an enlarged detailed section on the line by raising the well tubing secured to the upper threaded coupling 3. In this operation, the tubular casing section l will be 4-4 of F ig. 3.

Referring especially to Figs. 141 of the withdrawn from the section 2 and raised there-above until the flange 10 of said secdrawings, 1 indicates a tubular casing section slidably fitting within a hollow section 2 and having a coupling 3 threaded in its tion 1 engages the head 7 on the pipe 6 of upper end for attachment to the usual well said section 2; thereby withdrawing the section l from the packing sleeve 4 and permitting said sleet'e to contract from its eX- tubing. The casing section 1 carries a peripheral packing sleeve 4 of rubber, or other panded position. The parts will be then in their relative positions shown in Fig. 2 and suitable material, adapted to be expanded the packer can be readily pulled from the by the section 2 when said casing sections are forced togethe The section 2 is provided with a threaded well by elevating the well tubing secured to lower end 5 adapted to engage the well tubthe upper coupling 3 of said packer.

I have illustrated and described preferred and satisfactory constructions, but changes ing it'or firmly supporting said section in position within a well. An upwardlv excould be made within the spirit and scope of my invention.

tending pipe 6 is screwed in the threaded portion 5 of said section 2 and provided with claim t* 1. In a well packing, the combination of heads 7 and 8 and a suitable packing, such as a leather cup 9 telescoping within the a casing comprising two relatively movable sections; an expansible packing carried by tubular section l; a flange 10 being formed on said section l for engaging said head 7 said casing; a member secured on one of saicl sections; a member cletachably mounted on the other section and adapted to engage with said secured member for holding the sections in spaced relation when lower.

ing into position, and to allow said sections to separate for removal from the well; a pipe section carried by one oi saiol easing sections and constructed with a head; and a flange formed on the other casing surrounding said pipe and aclaptecl to engage with said heacl whereby to remove the easing sections fromy the well.

2. ln a well packing, the combination of a easing comprising two relatively movable sections, a tubey Secured to one of said. sections and sliclably telescoping in the other of said sections, a packing Jfor said telescoping portion of the tube, an expansible packing sleeve carried by said casing, and means for moving one of saicl members relative t0 the other Jfor expanding said packing sleeve.

ln testimony whereof, I alix my signature, in presence of two witnesses.

NLLIAM S. PIERCE.

1iVitnesses t MARGARET MARTIN, JOHN L. Nnsri.

(logies of this patent may be obtained for ve cents each, by addressing the; Goinmilssone` of Tatum,

` Washingtomn. C. 

